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Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 291 · 40 questions
TalentJR

Engineer's tip (Low, wide, flexible): Safer: wide base, flexible joints, bracing, steel in concrete, light roof, rubber pads, simple shape. Less safe: heavy tops, narrow bases, loose bricks, no steel, brittle joints. Tipping: compare height ÷ base width — the smaller it is, the steadier the block.

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  1. 1.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) using a light roof (d) raising heavy tanks high
  2. 2.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 20 cm wide base, tower B is 120 cm tall on a 40 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
  3. 3.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
  4. 4.🏚️ Why is a wide base safer? (a) it is taller (b) it is harder to tip over (c) it is colourful (d) it is lighter
  5. 5.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
  6. 6.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on the very top (c) on a thin pole (d) hanging outside
  7. 7.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding steel to concrete (c) keeping a simple shape (d) using a heavy roof
  8. 8.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) stacking loose bricks (c) raising heavy tanks high (d) using a heavy roof
  9. 9.🔍 Which is the odd one out? (a) using flexible joints (b) adding cross bracing (c) using a heavy roof (d) keeping a simple shape
  10. 10.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
  11. 11.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
  12. 12.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 60 cm tall on a 30 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
  13. 13.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
  14. 14.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a shake table (c) a microscope (d) a telescope
  15. 15.🔍 Which is the odd one out? (a) adding cross bracing (b) using a light roof (c) using flexible joints (d) leaving out steel bars
  16. 16.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 20 cm wide base, tower B is 30 cm tall on a 30 cm base and tower C is 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
  17. 17.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 20 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
  18. 18.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
  19. 19.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
  20. 20.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) raising heavy tanks high (c) adding steel to concrete (d) fitting rubber base pads
  21. 21.🔍 Which is the odd one out? (a) fitting rubber base pads (b) making brittle joints (c) keeping a simple shape (d) using flexible joints
  22. 22.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
  23. 23.🏚️ Three solid model towers are made of the same material. Tower A is 100 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 30 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
  24. 24.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
  25. 25.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
  26. 26.🔍 Which is the odd one out? (a) raising heavy tanks high (b) keeping a simple shape (c) fitting rubber base pads (d) adding cross bracing
  27. 27.🔍 Which is the odd one out? (a) leaving out steel bars (b) making brittle joints (c) building tall and narrow (d) having a wide base
  28. 28.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
  29. 29.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using flexible joints (c) keeping a simple shape (d) stacking loose bricks
  30. 30.🔍 Which is the odd one out? (a) keeping a simple shape (b) adding cross bracing (c) stacking loose bricks (d) using a light roof
  31. 31.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
  32. 32.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) building tall and narrow (c) having a wide base (d) making brittle joints
  33. 33.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
  34. 34.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 20 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
  35. 35.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) leaving out steel bars (c) building tall and narrow (d) adding steel to concrete
  36. 36.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) making brittle joints (c) building tall and narrow (d) keeping a simple shape
  37. 37.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) leaving out steel bars (c) making brittle joints (d) building tall and narrow
  38. 38.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 10 cm wide base, tower B is 90 cm tall on a 30 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
  39. 39.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) stacking loose bricks (c) raising heavy tanks high (d) using a light roof
  40. 40.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False

Answer key

  1. using a light roof
  2. tower A
  3. safer in earthquakes
  4. it is harder to tip over
  5. False
  6. low down
  7. using a heavy roof
  8. using flexible joints
  9. using a heavy roof
  10. False
  11. less safe
  12. tower C
  13. True
  14. a shake table
  15. leaving out steel bars
  16. tower A
  17. tower B
  18. less safe
  19. safer in earthquakes
  20. raising heavy tanks high
  21. making brittle joints
  22. safer in earthquakes
  23. tower A
  24. safer in earthquakes
  25. True
  26. raising heavy tanks high
  27. having a wide base
  28. less safe
  29. stacking loose bricks
  30. stacking loose bricks
  31. False
  32. having a wide base
  33. less safe
  34. tower C
  35. adding steel to concrete
  36. keeping a simple shape
  37. fitting rubber base pads
  38. tower A
  39. using a light roof
  40. False

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